Alert archive / Nebraska / Tornado Warnings in 2008

Tornado Warning 2, NWS North Platte, NE

April 23, 2008Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at Apr 23, 2008, 5:46 PM CDT for Custer County, Nebraska. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 23, 2008, 5:46 PM CDT (22:46 UTC)
Expired: Apr 23, 2008, 6:15 PM CDT
In force: 29 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Custer County, NE

The radar

The North Platte radar (KLNX), 60 km from the middle of the area, began a volume at 22:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 23, 6:05 PM CDT	HAIL 1.25	E Arnold, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.8 hours before the alert went out and 64 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1459 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 245 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KLBF 232246
TORLBF
NEC041-232315-
/O.NEW.KLBF.TO.W.0002.080423T2246Z-080423T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
546 PM CDT WED APR 23 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CUSTER COUNTY IN CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF ARNOLD...

* UNTIL 615 PM CDT

* AT 542 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ARNOLD...
  MOVING NORTH AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  HIGHWAY 92 MILE MARKER 260 BY 555 PM CDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR WESTERN NEBRASKA.

LAT...LON 4171 10019 4165 9983 4131 10003 4141 10024
TIME...MOT...LOC 2246Z 191DEG 26KT 4141 10012

$$

SPRINGER

2 follow-up statements

000 
WWUS53 KLBF 232300
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
601 PM CDT WED APR 23 2008

NEC041-232315-
/O.CON.KLBF.TO.W.0002.000000T0000Z-080423T2315Z/
CUSTER NE-
601 PM CDT WED APR 23 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHWESTERN CUSTER COUNTY...

AT 557 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR HIGHWAY 92 MILE
MARKER 260...OR 7 MILES NORTHEAST OF ARNOLD...MOVING NORTH AT 30 MPH.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

LAT...LON 4171 10019 4165 9983 4131 10003 4141 10024
TIME...MOT...LOC 2301Z 191DEG 26KT 4152 10009

$$

SPRINGER

000 
WWUS53 KLBF 232316
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
614 PM CDT WED APR 23 2008

NEC041-232324-
/O.EXP.KLBF.TO.W.0002.000000T0000Z-080423T2315Z/
CUSTER NE-
614 PM CDT WED APR 23 2008

...THE TORNADO WARNING FOR NORTHWESTERN CUSTER COUNTY WILL EXPIRE AT
615 PM CDT/515 PM MDT/...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL NEBRASKA.

A SEVERE THUNDERSTORM WARNING CONTINUES FOR NORTHWEST CUSTER COUNTY.

LAT...LON 4171 10019 4165 9983 4131 10003 4141 10024
TIME...MOT...LOC 2314Z 191DEG 26KT 4161 10006

$$

SPRINGER

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 4:35 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan	55 min
Apr 23, 5:06 PM CDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	39 min
Apr 23, 5:27 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Logan	63 min
Apr 23, 5:27 PM CDT	Severe Thunderstorm Warning	LBF	Hayes, Lincoln	33 min
Apr 23, 5:39 PM CDT	Severe Thunderstorm Warning	LBF	Custer	66 min
Apr 23, 5:45 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown	30 min
Apr 23, 5:49 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	32 min
Apr 23, 6:10 PM CDT	Severe Thunderstorm Warning	LBF	Brown	65 min
Apr 23, 6:28 PM CDT	Tornado Warning	LBF	Blaine, Custer	32 min
Apr 23, 6:33 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Loup, Rock	41 min
Apr 23, 6:47 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	43 min
Apr 23, 6:51 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	54 min
Apr 23, 6:51 PM CDT	Severe Thunderstorm Warning	LBF	Brown	24 min

Nearby

Tornado Warnings in Nebraska, 2008 Every tornado warning in 2008 Tornadoes in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.